Gurobi 5.0.1 (linux64) logging started Sat Nov 17 01:17:59 2012

Optimize a model with 51303 rows, 45156 columns and 198006 nonzeros
Presolve removed 18 rows and 3394 columns
Presolve time: 1.11s
Presolved: 51285 rows, 41762 columns, 194130 nonzeros
Variable types: 0 continuous, 41762 integer (41762 binary)
Found heuristic solution: objective 212.0000000
Found heuristic solution: objective 3.0000000

Root relaxation: objective 2.000000e+00, 476 iterations, 0.03 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    2.00000    0  386    3.00000    2.00000  33.3%     -    1s

Explored 0 nodes (921 simplex iterations) in 1.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%